| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. S Bussers vs F Heemskerk |
| 0-1 | 25 | 1951 | Venice Zonal (Women) | B10 Caro-Kann |
| 27. F Heemskerk vs R M Bruce |
| 1-0 | 56 | 1951 | Venice Zonal (Women) | E60 King's Indian Defense |
| 28. C Vreeken vs F Heemskerk |
| 0-1 | 39 | 1952 | Dutch Championship (Women) | B18 Caro-Kann, Classical |
| 29. C Chaude de Silans vs F Heemskerk |
| ½-½ | 27 | 1952 | Candidates Tournament (Women) | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 30. F Heemskerk vs J Langos |
| ½-½ | 77 | 1952 | Candidates Tournament (Women) | E48 Nimzo-Indian, 4.e3 O-O 5.Bd3 d5 |
| 31. R M Bruce vs F Heemskerk |
| 0-1 | 61 | 1952 | Candidates Tournament (Women) | A03 Bird's Opening |
| 32. F Heemskerk vs S Reischer |
| 1-0 | 41 | 1952 | Candidates Tournament (Women) | E48 Nimzo-Indian, 4.e3 O-O 5.Bd3 d5 |
| 33. O Rubtsova vs F Heemskerk |
| 1-0 | 60 | 1952 | Candidates Tournament (Women) | B11 Caro-Kann, Two Knights, 3...Bg4 |
| 34. N Hruskova-Belska vs F Heemskerk |
| 0-1 | 42 | 1952 | Candidates Tournament (Women) | B10 Caro-Kann |
| 35. F Heemskerk vs M Berea de Montero |
| 1-0 | 22 | 1952 | Candidates Tournament (Women) | D02 Queen's Pawn Game |
| 36. E Tranmer vs F Heemskerk |
| ½-½ | 33 | 1952 | Candidates Tournament (Women) | C05 French, Tarrasch |
| 37. O Ignatieva vs F Heemskerk |
| 0-1 | 63 | 1952 | Candidates Tournament (Women) | B32 Sicilian |
| 38. F Heemskerk vs M Bain |
| 1-0 | 35 | 1952 | Candidates Tournament (Women) | E46 Nimzo-Indian |
| 39. K Zvorykina vs F Heemskerk |
| 1-0 | 46 | 1952 | Candidates Tournament (Women) | B28 Sicilian, O'Kelly Variation |
| 40. F Heemskerk vs E Bykova |
| 1-0 | 49 | 1952 | Candidates Tournament (Women) | A05 Reti Opening |
| 41. E Keller-Herrmann vs F Heemskerk |
| 1-0 | 46 | 1952 | Candidates Tournament (Women) | D22 Queen's Gambit Accepted |
| 42. F Heemskerk vs V Borisenko |
| 1-0 | 41 | 1952 | Candidates Tournament (Women) | E12 Queen's Indian |
| 43. F Heemskerk vs M Karff |
| 1-0 | 24 | 1952 | Candidates Tournament (Women) | E80 King's Indian, Samisch Variation |
| 44. L Bacic vs F Heemskerk |
| 1-0 | 35 | 1953 | Hoogovens (Women) | B28 Sicilian, O'Kelly Variation |
| 45. S Bussers vs F Heemskerk |
| ½-½ | 33 | 1953 | Hoogovens (Women) | C64 Ruy Lopez, Classical |
| 46. F Heemskerk vs V Nedeljkovic |
| 0-1 | 33 | 1953 | Yugoslav Championship International (Women) | A45 Queen's Pawn Game |
| 47. J Gurfinkel vs F Heemskerk |
| 1-0 | 39 | 1955 | Candidates Tournament (Women) | B12 Caro-Kann Defense |
| 48. F Heemskerk vs O Rubtsova |
| ½-½ | 43 | 1955 | Candidates Tournament (Women) | D37 Queen's Gambit Declined |
| 49. O Ignatieva vs F Heemskerk |
| ½-½ | 46 | 1955 | Candidates Tournament (Women) | E10 Queen's Pawn Game |
| 50. F Heemskerk vs L Volpert |
| 0-1 | 65 | 1955 | Candidates Tournament (Women) | A08 King's Indian Attack |
Kibitzing
